Which of the following is used for controlling the amount of light entering the eye?
Question 1 Report
Which of the following is used for controlling the amount of light entering the eye?
Answer Details
The iris is used for controlling the amount of light entering the eye. It is a thin, circular structure located behind the cornea and in front of the lens. The iris contains muscles that control the size of the pupil, the black circular opening in the center of the iris. In bright light, the iris muscles contract and the pupil becomes smaller, allowing less light to enter the eye. In dim light, the iris muscles relax and the pupil becomes larger, allowing more light to enter the eye. This process of adjusting the size of the pupil to control the amount of light entering the eye is called pupillary reflex.
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